Improvement in machines for double seaming tinware



UNITED STATES PATENT OFFICE.

MGDUFF COHEN AND ROBERT M. EDMONDS, OF CHARLESTON, SOUTH CAROLlNA.

IMPROVEMENT IN MACHINES FOR DOUBLE SEAMING TINWARE.

Specification forming part of Letters Patent No. 119,123, dated September 19, 1871.

To all whom it may concern:

Beitknown that we, MGDUEF COHEN and Ron- ERT M. EDMONDS, of Charleston, in the county of Charleston and State of South Carolina, have invented a new and Improved Machine forDouble Seaming Tinware; and we do hereby declare the following'to be a full, clear, and exact description of the same, reference being had to the accompan ying drawing making a part of this specification, in whichy Figure 1 is a side elevation. Fig. 2 is an end elevation; and Fig. 3, an enlargement of part of Fig. l.

This invention relates to a machine for putting double seams into circular tinware by means of a horizontal disk on which the article rests, and a vertical disk, between which and the horizontal disk the article is pressed, and where it is guided by an adjustable wheel separate from either of said disks, of which latter the vertical one has two parallel circumferential grooves, one of which begins and the other completes the double seam.

Referring to the drawing, Q is the base of the machine. A is an inclined standard, secured to the base Q, by a bolt,`B, whose foot fits ina groove in the base so as to make the standards adjustable. top of the standard A. B is a horizontal disk, placed on the top of the bolt C. D is a vertical disk with two circumferential grooves, l 2. His a horizontal shaft, mounted in webs projecting downward from the ends of the top plate L.V J s a halftube, fitting in a circumferential recess made in the shaft H. A pin on the outside of the half-tube J enters a slot in a lever, K, which is pivoted to the bottom plate M. P is a hollow co1- umn, which is cast on the base Q, and receives, at its top, a stem from the bottom plate M. M/ is a vertical bow, springing from the front end of the plate M, and fitting in slots in the sides of the plate L. A screw, S, passes through the top of the bow M and rests on the plate M. A tongue, extending downward from the rear web of the plate L, enters a central groove formed crosswise of the rear web of the plate M. Pins N, projecting from the sides of the said tongue, enter a groove formed in the web of the plate M. lF is the circular head of an arm, F1, that is pivoted C is a vertical bolt, placed in a recess in the between the branches of the bow M, and is furnished with a prong, F2, extending in an opposite direction from the arm F1, on the end of which arm F2 bears a spring, Cr, fastened to the plate M. A spring, pressing against the half -tube J, keeps the latter on the shaft H. E is a guidewheel with a double-beveled edge, secured to one end of a lever, j', that is pivoted to the under side of the plate M, near the front end thereof.

The standardA is inclined so that conical ware, such as coffee-pots, can be placed bottom upward on the disk B and not be interfered with, in rotating, by the standard. As soon as the pot is thus placed the guide-wheel E is moved against it by means of the lever f. The guide-wheel prevents the edge of the pot from being pressed outward by the disk D. The plate L is then lowered by the screw S, and the shaft H moved endwise, by means of the lever K, until the groove 1 of the disk D is in position to impart the first bending to the iiange, at the bottom ofthe pot, through the rotation of said disk by means of the crank O. The flange z' is bent, during the first stage, down to the edge of the wheel E. This being done,'the shaft His again shifted by means of the lever K and screw S until the groove 2 of the disk D is in position to impart the final bending to the ange t, which brings it close against the side of the pot, the wheel E in the mean time being turned back to the position shown in Fig.

` 1. By means of the arm F the plate L is then quickly raised far enough to leave suicient space between the disks B and D for the removal of one pot and its replacement by another. c

Having thus described our invention, wh at we claim as new and desire to secure by Letters Patent, is-

The double-grooved disk D, the double-beveled disk E, and the horizontal disk B, constructed and arranged to operate together without change or substitution, in the manner described.

MGDUFF COHEN. ROBERT M. EDMONDS.

F. J. WINKLER. (112.) 

